Commitments and Guarantees - Schedule of Repurchase Agreements (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
Fair value of indemnified securities financing	$ 407,558	$ 371,968
Fair value of cash and securities held by us, as agent, as collateral for indemnified securities financing	427,420	393,584
Fair value of collateral for indemnified securities financing invested in indemnified repurchase agreements	53,445	51,762
Fair value of cash and securities held by us or our agents as collateral for investments in indemnified repurchase agreements	$ 57,464	$ 55,943